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SubjectRe: [regression] commit 6a4f3b52 causes invalid memtype

* Ali Gholami Rudi <ali@rudi.ir> wrote:

> Xiaotian Feng <dfeng@redhat.com> wrote:
> > On 07/05/2010 05:28 PM, Ali Gholami Rudi wrote:
> > > Xiaotian Feng<dfeng@redhat.com> wrote:
> > >> Could you please try following commit in -tip tree?
> > >>
> > >> commit 2463eb8b3093995e09a0d41b3d78ee0cf5fb4249
> > >> Author: Peter Zijlstra<peterz@infradead.org>
> > >> Date: Sat May 29 15:31:43 2010 +0200
> > >>
> > >> rbtree: Undo augmented trees performance damage
> > >
> > > Where can I get it? I couldn't find it either in
> > > Linus' or x86 repo tip.
> > http://git.kernel.org/tip/2463eb8b3093995e09a0d41b3d78ee0cf5fb4249
>
> It does fix it.

Hm, interesting. That's a pure performance fix - so why does it fix a
regression?

Does Peter's augmented rbtrees improvements fix a bug too, as a side-effect?
If yes then we need to accelerate that commit - right now it's aimed for
v2.6.36.

Thanks,

Ingo


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